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Use inheritance as an implementation technique when you are going to use inheritance as an implementation technique, you can achieve same goal in a safer way by making one cla
Describe about Object oriented design Object oriented design is concerned with developing an object oriented model of a software system to implement known requirements. Many OO
The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
What are domain constraints? A domain is a set of values that might be assigned to an attribute .all values that appear in a column of a relation must be taken from the similar
Explain Composite attribute in SQL ? Composite attribute: A composite attribute has many components, each of that is atomic or composite.
What is Relational Algebra? Relational algebra is a Procedural query Language?
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
Describe Database state in details? Database state: The actual data within the database at a particular moment in time is known as a database state.
Have database built but having problems with some questions that go with the database
Describe in brief about DBMS ?
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